oj.uz

답안 #445809

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
445809 2021-07-19T16:26:46 Z Jasiekstrz Patkice (COCI20_patkice) C++17
50 / 50
 1 ms 716 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int INF=1e9+7;
const int N=100;
bool ok[N+10][N+10];
vector<pair<int,int>> e[N+10][N+10];
int dfs(int x,int y)
{
	if(ok[x][y])
		return 1;
	if(e[x][y].empty())
		return INF;
	return dfs(e[x][y][0].fi,e[x][y][0].se)+1;
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n,m;
	cin>>n>>m;
	pair<int,int> s;
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=m;j++)
		{
			char c;
			cin>>c;
			if(c=='x')
				ok[i][j]=true;
			if(c=='o')
				s={i,j};
			if(c=='<')
				e[i][j].emplace_back(i,j-1);
			if(c=='>')
				e[i][j].emplace_back(i,j+1);
			if(c=='^')
				e[i][j].emplace_back(i-1,j);
			if(c=='v')
				e[i][j].emplace_back(i+1,j);
		}
	}
	int ans=INF;
	char g=0;
	vector<tuple<int,int,char>> moves={{0,1,'E'},{-1,0,'N'},{1,0,'S'},{0,-1,'W'}};
	for(auto [i,j,c]:moves)
	{
		int tmp=dfs(s.fi+i,s.se+j);
		if(tmp<ans)
		{
			ans=tmp;
			g=c;
		}
	}
	if(ans==INF)
		cout<<":(\n";
	else
		cout<<":)\n"<<g<<"\n";
	return 0;
}

Subtask #1
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 588 KB Output is correct
2 Correct 1 ms 588 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 588 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 1 ms 588 KB Output is correct
7 Correct 1 ms 588 KB Output is correct
8 Correct 1 ms 588 KB Output is correct
9 Correct 1 ms 588 KB Output is correct
10 Correct 1 ms 716 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 608 KB Output is correct
2 Correct 1 ms 588 KB Output is correct
3 Correct 1 ms 600 KB Output is correct
4 Correct 1 ms 588 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 1 ms 588 KB Output is correct
7 Correct 1 ms 588 KB Output is correct
8 Correct 1 ms 588 KB Output is correct
9 Correct 1 ms 588 KB Output is correct
10 Correct 1 ms 716 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 716 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 588 KB Output is correct